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Vehicle detection apparatus, vehicle detection program and light control apparatus

a technology for vehicle headlamps and detection apparatuses, applied in vehicle headlamps, process and machine control, lighting support devices, etc., to achieve the effect of restricting the illumination rang

Active Publication Date: 2010-04-15
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]In light of the problems mentioned above, the present invention has an object of providing a technique that enables accurate detection of vehicles during the hours of darkness.

Problems solved by technology

However, during traveling, a vehicle may rock due to the roughness of the road, and with the rock motion, the cutline is vertically shifted.

Method used

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  • Vehicle detection apparatus, vehicle detection program and light control apparatus
  • Vehicle detection apparatus, vehicle detection program and light control apparatus
  • Vehicle detection apparatus, vehicle detection program and light control apparatus

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Embodiment Construction

[0039]With reference to the accompanying drawings, hereinafter will be described an embodiment of the present invention.

[0040][Configuration of the Present Embodiment]

[0041]FIG. 1 is a schematic block diagram illustrating a light control system 1 to which the present invention is applied. The light control system 1 is equipped on a vehicle, such as a passenger car, (hereinafter referred to as “the system-equipped vehicle” or “the vehicle”). The light control system 1 has a function of controlling the illumination range of the headlights of the system-equipped vehicle 100 (see FIG. 2).

[0042]As shown in FIG. 1, the light control system 1 includes a camera 5 (image acquisition means), a vehicle detection apparatus 10 and a headlight control apparatus 20. The camera 5 picks up images of the road frontward of the vehicle 100. The vehicle detection apparatus 10 detects an oncoming vehicle that travels from the opposite direction of the vehicle 100, from the images picked up by the camera ...

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PUM

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Abstract

A vehicle detection apparatus detects oncoming vehicles, and the illumination angle of the headlight is changed downwardly when oncoming vehicles are detected. When detecting the oncoming vehicles, the vehicle detection apparatus detects brightness or area for the every light source in an acquired image repeatedly, and detects as a variable light source any light source of which brightness or area changes within a reference time beyond a predetermined variation reference value. Then, when a variable light source is detected, it is determined that vehicles exist in the acquired image.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is based on and claims the benefit of priority from earlier Japanese Patent Application No. 2008-264231 filed Oct. 10, 2008, the description of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Technical Field of the Invention[0003]The present application relates to a vehicle detection apparatus that detects vehicles during the hours of darkness, and to a vehicle detection program and a light control apparatus.[0004]2. Related Art[0005]Vehicle detection apparatuses have been known, which detect vehicles during the hours of darkness. A type of such a vehicle detection apparatus analyzes the absolute value of the brightness of a light source. Another type of such a vehicle detection apparatus analyzes the wavelength of the light emitted from a light source. Both of these types of vehicle detection apparatus can discriminate light originating from the headlights of a vehicle from light originating ...

Claims

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Application Information

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IPC IPC(8): F21V21/14G08G1/054H04N7/18
CPCB60Q1/1423G06K9/00825B60Q2300/056G06V20/584
Inventor KAMIOKA, TAKAHIRO
Owner DENSO CORP
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